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Old 09-12-2017, 03:46 PM   #1
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sound deadening

Has anyone out there attempted to lessen the sounds emanating from the dog house (and other up-front areas) of their Jayco Alante/Precept? I am assuming, without first-hand knowledge that the general layout of the Alante and Precept are reasonably similar as it relates to the dog house.

Before I spend money/time installing insulation, and since I have almost zero experience with motor homes, I would very much appreciate any input from more experienced owners who have battled with the noise level.

Thanks in advance for any responses.
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Old 09-12-2017, 03:58 PM   #2
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Thumbs down Cold air intake

I installed a Banks cold air intake on our 2014 Tiffin Open Road and it is so loud that I will soon be removing it. I also added almost an inch of extra insulation to the "dog house" which proved to be a waste of time and money.
Would never recommend a cold air intake on the Ford V10. Much too loud. Cannot carry on a conversation in the cockpit.
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Old 09-12-2017, 08:09 PM   #3
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I installed a Banks cold air intake on our 2014 Tiffin Open Road and it is so loud that I will soon be removing it. I also added almost an inch of extra insulation to the "dog house" which proved to be a waste of time and money.
Would never recommend a cold air intake on the Ford V10. Much too loud. Cannot carry on a conversation in the cockpit.
Harjac,

Thank you for the input. Since I have only driven the coach less than 2,000 miles, at this moment I have no issues with the engine power. However, I am tired of listening to the loud cockpit noises. I am entirely new to the motor home world so maybe noise is an issue that one has to live with, but I am hoping that someone has had success with a sound deadening process. Have a great day!
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Old 09-12-2017, 08:16 PM   #4
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If you want quiet, and a great ride, get a diesel pusher.

FWIW: I routinely drive Allegro Open Road, assorted Fleetwood, and assorted Thor Class A's. The Allegro is the most quiet of the bunch.
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Old 09-12-2017, 08:56 PM   #5
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Thermo tech cool it. Amazon. Keeps DW cooler and the cab is much quieter. One layer under house, floor mat, and seats. As much as I can reach on the outside, reaching under from house, and from ground. (E450) I used 2 30x60" rolls. IIRC, the hot spot in the pass floor was 30 deg cooler, going through 115 deg heat desert area. Before, had measured about 160 deg, at the point where the exhaust goes past the house/floorboard seam.
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Old 09-12-2017, 09:02 PM   #6
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One warning... less engine and road noise means DW can hear other things, causing more fixes to be on my list
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Old 09-13-2017, 02:02 PM   #7
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Sound Deadening

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Thermo tech cool it. Amazon. Keeps DW cooler and the cab is much quieter. One layer under house, floor mat, and seats. As much as I can reach on the outside, reaching under from house, and from ground. (E450) I used 2 30x60" rolls. IIRC, the hot spot in the pass floor was 30 deg cooler, going through 115 deg heat desert area. Before, had measured about 160 deg, at the point where the exhaust goes past the house/floorboard seam.
Thank you for the response. I have looked at several products on YouTube and Amazon, and am wondering if a combination of a mat-type material and a spray-on/roll-on (applied either over or under mat) would be helpful. The other issue is, "would this two-layer approach be wasteful in the sense of return on effort?"

When you did your coach, did you also put material inside the wheel wells? This is a brand new coach, and your comment about where you applied the material has me a little confused/concerned. Did you remove the carpet inside the coach (including the dog house) of did you only put the material underneath the coach in the approximate position of those interior areas (did this make sense)?

Finally, the ONLY benefit of having a hearing deficiency is that I can always claim to not hear my spouse when appropriate.
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Old 09-13-2017, 02:32 PM   #8
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I took out the seats and the floor mat for easier installation. I covered the complete floor under the seats as well as as far up as possible in the firewall and Fender area. My suggestion is anywhere you can reach in the cab, firewall, and Fender area. That will take care of heat and noise in the cab area. Next would be to follow along the exhaust system underneath and insulate as much as you can reach in that area as well. It will never be completely quiet, but products such as I suggested do make a noticeable difference with both heat and Noise.
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Old 09-13-2017, 02:34 PM   #9
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My advantage was having my wife using an infrared temperature gun. She made sure to point out the hottest spots where she puts her feet and where the heat radiated onto her legs.
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Old 09-13-2017, 05:48 PM   #10
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Sound deadening

V3600 has the answer, and we are looking for a diesel pusher. I don't think anything can be done to quieten an up front v10 engine. Don't have a problem with heat, just noise. Love our Open Road floor plan and workmanship but manufacturer should do more to insulate and sound proof any unit with engine up front. Torture to drive in a hilly or mountainous area.
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